<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        img {
            position: fixed;
            left: 0;
            bottom: 0;
        }
    </style>
</head>
<body>
<img src="./img/luya_3.png" alt="">
<script>
    //得到广告
    var htmlImageElement = document.querySelector('img');
    setTimeout(function () {
        htmlImageElement.style.display = 'none';
    }, 2000)
</script>
</body>

</html>